Arch for fireboxes



F. l. SPILLANE.

ARCH FOR FIREBOXES, APPLICATION FILED mm, 1920.

1,393,'647.= Patented Oct.11,1921.'

WITNESSES 10 J p uwnv 'rog I n'rromsrs too-rapid cooling of FRANK J'- SPILLANE, 0F BRUOKLYN, NEW YORK.

ARCH FOR FIREBOIZES.

T0 aZZ whom it may concern e it known that I, FRA K J. SPILLANE, a citizen of the United States, and a residentof the city of New York, borough of Brooklyn, in the county of Kings and State of New York, have invented a new and improved Arch for F ireboxes, of which the following is a full, clear, and exact description. The invention relates to oil burning steam boilers, and its object is to provide a new and improved arch for fire boxes of such oilers, arranged to permit of readily assembling the sections of the arch at the front or rear end of the fire boxes and to allow of readily removing and replacing a burned out section by a new one whenever necessary.

from reaching the joint and to prevent a the joint after the fiame is extinguished.

With these and other objects in view, the

invent burning fire box provided with the lmproved front and rear arches;

Fig. 2 is an enlarged face View of the rear arch Fig. 3 is a side elevation of the same with the fire box shown in broken lines;

Fig. 4 is an enlarged face view of the front arch Fig. 5 is an edge view of one half of the same looking in the direction of the arrows on the line 55 of *ig. 4;

Fig. 6 is a side elevation of one sections of the rear arch;

Fig. 7 is a face view of the same;

Fig. 8 is a side elevation of one of the intermediate or middle sections of the rear arch;

Fig. 9 is a face View of the same;

Fig. 10 is a side elevation of one of the bottom sections of the rear arch; and

of the top Specification of Letters Patent.

Application filed April 2,

i the middle sections 24-, 25.

Patented Oct. 11,

1921. 1920. Serial No. erases.

and rear ends in the usual manner with the front and rear fiue sheets 11 and 12 of the boiler, as plainly shown in ig. 1. In the front end of the fire box 10 is arranged an arch 15 and in the rear of the said fire box is mounted an arch 16, the said front and rear arches 15 and 16 being made of fire clay or other suitable refractory fireproof material to readily withstand the high heat developed in the fire box through the urning of a hydrocarbon or other oil. The front arch 15, shown in detail in Figs. 4 and 5, comprises two top sections 20, 21, two bottom sections 22, 23, and intermediate sections 241, 25. T e top sections 20 and 21 provide at 26 diametrically opposite a vertical joint 27 formed by the lower ends of the top sections 20, 21 form with the upper faces of the middle sections 2 1, 25 horizontal joints 28, 29 and similar joints 30, 31 are formed between the upper ends of the bottom sections 22, 23 and the under faces of he several joints 26, 27, 28, 29, 30 and 31 are each pro vided with tongue and groove connections 35 and 36 to hold the sections against longitudinal movement one relative to the other. The rear arch 16 is formed of similar top sections d0, 41, bottom sections 42, 43 and intermediate or middle sections 4 1, 4:5 providing the vertical joints as, a? and the horizontal joints 48, 49, 50 and 51, corresponding to the joints 26, 27, 28, 29, 30 and 31 of the front arch description of the same is not By groove connections 52, 53, similar to the tongue and groove connections 35 and 36. The top sections 40 and he rear arzli 16 are provided at their outer ends with integral flanges and 61 spondingly shaped rear end of the lower portion of the fire box 10, as will be readily understood by reference to Figs. 1, 3 and 10.

From the foregoing it will be seen that by the arrangement described the bottom and top sections of the front or rear arch 15 or 16 can be readily placed in position in the fire box and then the middle or intermediate sections can be slipped in place sidewise from within the opening or" the arch. In assembling the sections in the manner described they are locked in place against longitudinal movement owing to the tongue and groove connections, and the top section of the rear arch 16 are held against inward movement by the flanges 60, 61, and the bottom sectioned! and as are held against longitudinal shitting by the grooved exterior faces 70. It will also be noticed that by the arrangement described a burned out section can be readily removed and replaced by a new one whenever necessary. It will further be noticed that the joint between the rear end of the fire box 10 and the rear flue sheet 12 is protected by the flanges 60, 61

thus preventing the flame passingfrom the fire box through the opening in the rear arch from injuring said joint and at the same time the joint is protected against too-rapid cooling after the flame in the fire box is ex tinguished.

Having'thus described my invention, 1 claim as new and desire to secure by Letters Patent V 1.. An arch for an oil burning fire box, comprising top sections joined at their upper ends on a vertical center line, bottom sections joined at their lower ends in the said vertical center line, and side sections slidably joined with the lower ends of the top sections and the upper ends of the lower sections.

2. An arch for an oil burning fire box,

' comprising top sections joined at their upper box to protect ends on a vertical center line, bottom sections joined at their lower ends in the said vertical center line, and side sections slidably joined with the lower ends of the top sections and the upper ends of the lower sections each of the joints having a tongue and groove connection. i

8. An arch for an oil burning fire box,

comprising top sections joined at their upper ends on a vertical center line, bottom sections joined at their lower ends in the said vertical center line, joined with the lower ends of the top sections and the upper ends of the lower sec tions, each or the joints having a tongue and groove connection, of which the tongues and grooves of the top and bottom joints extend vertically and the tongues and grooves of the side joints extend horizontally 4. An arch for an oil burning fire box, comprising top sections joined at their upper ends on a vertical center line, bottom sections joined at their lower ends in the said vertical center line, and side sections slidably joined with the tions and the upper ends tions, the bottom sections of the lower secbeing grooved ex teriorly to conform to the correspondingly.

shaped bottom portion of the fire box.

5. An arch for anoil burning firebox, comprising top sections joined at their upper ends on a vertical center line bottom sections joined at their lower ends in thersaid vertical center line, and side sections slidably joined with the lower ends of the top sectionsand the upper ends of the lower sections, the top sections having at their outer ends integral flanges adapted to extend exteriorly over the upper portion of the joint formed between the flue sheet and the fire said fire box joint against the throughthe arch."

flame passing 7 FRANK J. SPILLANE.

and side sections.

lower ends of the top sec- 

